1J Postel. User Datagram Protocol[EB/OL].http://www.faqs.org/rfcs/rfc768.html, RFC 768,1980.
2Wilson Boulevard. Transmission Control Protocol[EB/OL]. http://www.faqs.org/rfcs/rfc793.html,RFC 793,1981.
3T Bova, T Krivoruchka. Reliable UDP Protocol[EB/OL]. http://www.javvin.com/protocol/reliable-udp.pdf,1999.
4H Schulzrinne, S Casner, V Jacobson. RTP: A Transport Protocol for Real-time Applications[EB/OL]. http://www.faqs.org/rfcs/rfc3550.html,RFC 3550, 2003.